package com.fcmeditech.AsianSexyGirls.PullListView;





import com.fcmeditech.AsianSexyGirls.R;

import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.MeasureSpec;
import android.view.View.OnClickListener;
import android.view.animation.LinearInterpolator;
import android.view.animation.RotateAnimation;
import android.widget.AbsListView;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.AbsListView.OnScrollListener;

public class PullToRefressList extends ListView implements   OnScrollListener {
	
	//Declare all of variables of this class
	
	//4 stateRefresh
	 private static final int TAP_TO_REFRESH = 1;
	 private static final int PULL_TO_REFRESH = 2;
	private static final int RELEASE_TO_REFRESH = 3;
	 private static final int REFRESHING = 4;
	
	private RotateAnimation mFlipAnimation;
	private RotateAnimation mReverseFlipAnimation;
	
	private LayoutInflater mInflater;
	private RelativeLayout mRefreshView;
	
	private TextView mRefreshViewText;
	private ImageView mRefreshViewImage;
	private ProgressBar mRefreshViewProgress;
	private TextView mRefreshViewLastUpdated;
	
	private OnRefreshListener mOnRefreshListener;
	private OnScrollListener mOnScrollListener;
	
	private int mCurrentScrollState;
	private int mRefreshState;
	
	private int mRefreshViewHeight;
	private int mLastMotionY;
	private int mRefreshOriginalTopPadding;


	private boolean mBounceHack;
	/*
	 * Constructor of class
	 */
	public PullToRefressList(Context context) {
		super(context);		
		init(context); //calling the customer init() method
	}
	
	public PullToRefressList(Context context, AttributeSet attrs) {
		super(context, attrs);
		init(context); //calling the customer init() method	
		}
	public PullToRefressList(Context context, AttributeSet attrs, int defStyle) {
		super(context, attrs, defStyle);
		init(context); //calling the customer init() method	
		}

	
	private void init(Context context) {
		/*
		 * ThuanPham recodes
		 * Load all of the animations we need in code rather than through XML
		 */
		
		//Creating animation
		 mFlipAnimation = new RotateAnimation(0, -180,
	                RotateAnimation.RELATIVE_TO_SELF, 0.5f,
	                RotateAnimation.RELATIVE_TO_SELF, 0.5f);
	        mFlipAnimation.setInterpolator(new LinearInterpolator());
	        mFlipAnimation.setDuration(250);
	        mFlipAnimation.setFillAfter(true);
	        mReverseFlipAnimation = new RotateAnimation(-180, 0,
	                RotateAnimation.RELATIVE_TO_SELF, 0.5f,
	                RotateAnimation.RELATIVE_TO_SELF, 0.5f);
	        mReverseFlipAnimation.setInterpolator(new LinearInterpolator());
	        mReverseFlipAnimation.setDuration(250);
	        mReverseFlipAnimation.setFillAfter(true);
	        
        mReverseFlipAnimation.setInterpolator(new LinearInterpolator());
        mReverseFlipAnimation.setDuration(250);
        mReverseFlipAnimation.setFillAfter(true);
        
        mInflater = (LayoutInflater) context.getSystemService(
                Context.LAYOUT_INFLATER_SERVICE);
        
        //Create View on Header LisView
        
        mRefreshView = (RelativeLayout) mInflater.inflate(
				R.layout.pull_refresh_header, this, false);
        mRefreshViewText =
            (TextView) mRefreshView.findViewById(R.id.pull_to_refresh_text);
        mRefreshViewImage =
            (ImageView) mRefreshView.findViewById(R.id.pull_refresh_image);
        mRefreshViewProgress =
            (ProgressBar) mRefreshView.findViewById(R.id.pull_refresh_progress);
        mRefreshViewLastUpdated =
            (TextView) mRefreshView.findViewById(R.id.pull_refresh_updated_at);

        mRefreshViewImage.setMinimumHeight(50);
        mRefreshView.setOnClickListener(new OnClickRefreshListener());
        mRefreshOriginalTopPadding = mRefreshView.getPaddingTop();

        mRefreshState = TAP_TO_REFRESH;

        addHeaderView(mRefreshView);

        super.setOnScrollListener(this);

        measureView(mRefreshView);
        mRefreshViewHeight = mRefreshView.getMeasuredHeight();
	}
	  
	    @Override
	protected void onAttachedToWindow() {
	    setSelection(1);
	}
	//Set Apdapter of List
	@Override
	public void setAdapter(ListAdapter adapter) {
	    super.setAdapter(adapter);
	
	    setSelection(1);
	}
	 

	 /**
     * Set a text to represent when the list was last updated. 
     * @param lastUpdated Last updated at.
     */
    public void setLastUpdated(CharSequence lastUpdated) {
        if (lastUpdated != null) {
            mRefreshViewLastUpdated.setVisibility(View.VISIBLE);
            mRefreshViewLastUpdated.setText(lastUpdated);
        } else {
            mRefreshViewLastUpdated.setVisibility(View.GONE);
        }
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        final int y = (int) event.getY();
        mBounceHack = false;

        switch (event.getAction()) {
            case MotionEvent.ACTION_UP:
                if (!isVerticalScrollBarEnabled()) {
                    setVerticalScrollBarEnabled(true);
                }
                if (getFirstVisiblePosition() == 0 && mRefreshState != REFRESHING) {
                    if ((mRefreshView.getBottom() >= mRefreshViewHeight
                            || mRefreshView.getTop() >= 0)
                            && mRefreshState == RELEASE_TO_REFRESH) {
                        // Initiate the refresh
                        mRefreshState = REFRESHING;
                        prepareForRefresh();
                        onRefresh();
                    } else if (mRefreshView.getBottom() < mRefreshViewHeight
                            || mRefreshView.getTop() <= 0) {
                        // Abort refresh and scroll down below the refresh view
                        resetHeader();
                        setSelection(1);
                    }
                }
                break;
            case MotionEvent.ACTION_DOWN:
                mLastMotionY = y;
                break;
            case MotionEvent.ACTION_MOVE:
                applyHeaderPadding(event);
                break;
        }
        return super.onTouchEvent(event);
    }

    private void applyHeaderPadding(MotionEvent ev) {
        // getHistorySize has been available since API 1
        int pointerCount = ev.getHistorySize();

        for (int p = 0; p < pointerCount; p++) {
            if (mRefreshState == RELEASE_TO_REFRESH) {
                if (isVerticalFadingEdgeEnabled()) {
                    setVerticalScrollBarEnabled(false);
                }

                int historicalY = (int) ev.getHistoricalY(p);

                // Calculate the padding to apply, we divide by 1.7 to
                // simulate a more resistant effect during pull.
                int topPadding = (int) (((historicalY - mLastMotionY)
                        - mRefreshViewHeight) / 1.7);

                mRefreshView.setPadding(
                        mRefreshView.getPaddingLeft(),
                        topPadding,
                        mRefreshView.getPaddingRight(),
                        mRefreshView.getPaddingBottom());
            }
        }
    }

	private void resetHeader() {
	        if (mRefreshState != TAP_TO_REFRESH) {
	            mRefreshState = TAP_TO_REFRESH;

	            resetHeaderPadding();

	            // Set refresh view text to the pull label
	            mRefreshViewText.setText(R.string.pull_to_refresh_tap_label);
	            // Replace refresh drawable with arrow drawable
	            mRefreshViewImage.setImageResource(R.drawable.ic_pulltorefresh_arrow);
	            // Clear the full rotation animation
	            mRefreshViewImage.clearAnimation();
	            // Hide progress bar and arrow.
	            mRefreshViewImage.setVisibility(View.GONE);
	            mRefreshViewProgress.setVisibility(View.GONE);
	        }
	    }

	private void measureView(View child) {
	        ViewGroup.LayoutParams p = child.getLayoutParams();
	        if (p == null) {
	            p = new ViewGroup.LayoutParams(
	                    ViewGroup.LayoutParams.FILL_PARENT,
	                    ViewGroup.LayoutParams.WRAP_CONTENT);
	        }

	        int childWidthSpec = ViewGroup.getChildMeasureSpec(0,
	                0 + 0, p.width);
	        int lpHeight = p.height;
	        int childHeightSpec;
	        if (lpHeight > 0) {
	            childHeightSpec = MeasureSpec.makeMeasureSpec(lpHeight, MeasureSpec.EXACTLY);
	        } else {
	            childHeightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
	        }
	        child.measure(childWidthSpec, childHeightSpec);
	    }

	/**
     * Register a callback to be invoked when this list should be refreshed.
     * 
     * @param onRefreshListener The callback to run.
     */
    public void setOnRefreshListener(OnRefreshListener onRefreshListener) {
        mOnRefreshListener = onRefreshListener;
    }

	 private class OnClickRefreshListener implements OnClickListener {

			public void onClick(View v) {
	            if (mRefreshState != REFRESHING) {
	                prepareForRefresh();
	                onRefresh();
	            }
	        }

}
	 
	 public void onRefresh() {
	    

	        if (mOnRefreshListener != null) {
	            mOnRefreshListener.onRefresh();
	        }
	    }
	  public void prepareForRefresh() {
	        resetHeaderPadding();

	        mRefreshViewImage.setVisibility(View.GONE);
	        // We need this hack, otherwise it will keep the previous drawable.
	        mRefreshViewImage.setImageDrawable(null);
	        mRefreshViewProgress.setVisibility(View.VISIBLE);

	        // Set refresh view text to the refreshing label
	        mRefreshViewText.setText(R.string.pull_to_refresh_refreshing_label);

	        mRefreshState = REFRESHING;
	    }

/**
 * Sets the header padding back to original size.
 */
	private void resetHeaderPadding() {
	    mRefreshView.setPadding(
	            mRefreshView.getPaddingLeft(),
	            mRefreshOriginalTopPadding,
	            mRefreshView.getPaddingRight(),
	            mRefreshView.getPaddingBottom());
	}
	 public interface OnRefreshListener {
	        /**
	         * Called when the list should be refreshed.
	         * <p>
	         * A call to {@link PullToRefreshListView #onRefreshComplete()} is
	         * expected to indicate that the refresh has completed.
	         */
	        public void onRefresh();
	    }

	public void onScroll(AbsListView view, int firstVisibleItem,
			int visibleItemCount, int totalItemCount) {
        // When the refresh view is completely visible, change the text to say
        // "Release to refresh..." and flip the arrow drawable.
        if (mCurrentScrollState == SCROLL_STATE_TOUCH_SCROLL
                && mRefreshState != REFRESHING) {
            if (firstVisibleItem == 0) {
                mRefreshViewImage.setVisibility(View.VISIBLE);
               
                if ((mRefreshView.getBottom() >= mRefreshViewHeight + 20
                        || mRefreshView.getTop() >= 0)
                        && mRefreshState != RELEASE_TO_REFRESH) {
                    mRefreshViewText.setText(R.string.pull_to_refresh_release_label);
                    mRefreshViewImage.clearAnimation();
                    mRefreshViewImage.startAnimation(mFlipAnimation);
                    mRefreshState = RELEASE_TO_REFRESH;
                } else if (mRefreshView.getBottom() < mRefreshViewHeight + 20
                        && mRefreshState != PULL_TO_REFRESH) {
                    mRefreshViewText.setText(R.string.pull_to_refresh_refreshing_label);
                    if (mRefreshState != TAP_TO_REFRESH) {
                        mRefreshViewImage.clearAnimation();
                        mRefreshViewImage.startAnimation(mReverseFlipAnimation);
                    }
                    mRefreshState = PULL_TO_REFRESH;
                }
            } else {
                mRefreshViewImage.setVisibility(View.GONE);
                resetHeader();
            }
        } else if (mCurrentScrollState == SCROLL_STATE_FLING
                && firstVisibleItem == 0
                && mRefreshState != REFRESHING) {
            setSelection(1);
            mBounceHack = true;
        } else if (mBounceHack && mCurrentScrollState == SCROLL_STATE_FLING) {
            setSelection(1);
        }

        if (mOnScrollListener != null) {
            mOnScrollListener.onScroll(view, firstVisibleItem,
                    visibleItemCount, totalItemCount);
        }
    }

	 /**
     * Resets the list to a normal state after a refresh.
     * @param lastUpdated Last updated at.
     */
    public void onRefreshComplete(CharSequence lastUpdated) {
        setLastUpdated(lastUpdated);
        onRefreshComplete();
    }
    /**
     * Resets the list to a normal state after a refresh.
     */
    public void onRefreshComplete() {        
      
        resetHeader();

        // If refresh view is visible when loading completes, scroll down to
        // the next item.
        if (mRefreshView.getBottom() > 0) {
            invalidateViews();
            setSelection(1);
        }
    }
	/**
	 * Set the listener that will receive notifications every time the list
	 * scrolls.
	 * 
	 * @param l The scroll listener. 
	 */
	  @Override
	    public void setOnScrollListener(AbsListView.OnScrollListener l) {
	        mOnScrollListener = l;
	    }

	public void onScrollStateChanged(AbsListView view, int scrollState) {
		mCurrentScrollState = scrollState;

    if (mCurrentScrollState == SCROLL_STATE_IDLE) {
        mBounceHack = false;
    }

    if (mOnScrollListener != null) {
        mOnScrollListener.onScrollStateChanged(view, scrollState);
    }}
}